Fireproof window construction.



IJ. o. SPEGHT. FIRBPROOI WINDOW CONSTRUCTION.

APPLICATION FILED APB. 4, 1907.

2 SHEBTS-SHEET 1.

Patented Apr. 13, 1909.

k cas J. G'. SPEGHT. HRBPROOF WINDOW CON STBUGTION.

APPLICATION FILED APB.. 4, 1907.

Papented Apr. 13

2 SHEETS-SHEET 2,

,gill/@21:2502- Jos'EPH o. srEcnr, or Los ANGELES, CALIFORNIA.

FIREPROOF WINDOW CONSTRUCTION.

- Specification of Letters Patent.'

Patented April 13, 1909.

l Application filed April 4, 1907. Serial N0. 366,458.

T o all whom it may concern:

- Be it known that I, JOSEPH C. SPEoH'r, a citizen of 4the'United States, 'residing at Los Angeles,in the` county of Los Angeles and State of California, have inventeda new and useful Fireproof NVindow Construction, of

which the following a specification.

This invention relates tothe frame and i sash of windows, and its object .is to provide va construction for this absolutely ireproof.

A further object of the invention is to propurpose which will be vide a window construction wholly of sheet metal, the various members of the sash and frame being of hollow metal construction, and an object of the invention in this connection is to provide such al construction which will obviate the use of soldered joints or rivets, or .wood in any constructive part thereof. I

, Another object ofthe inventionis to provide .means for facilitating 'the Aassemb-1i11s 0f 'the slashes in -the frame.

' Another object ofthe invention is to provide means for facilitating the assembling of weights in the frame.

In the accompanying drawings :#Figure 1 is an elevation, partlyin section, of the frame and sashes. Fig. 2 is avertical section thereof on the line m2 in'Fig. 1v. Fig.f3 is a horizontal section o n the line x3 in Fig. 1. Fig. 4

f is an enlarged horizontal section of one of the side members for the frame. Fig. 5 is a horizontal section of a sash on line :t5 in Fig. 2.

Fig. 6 is a horizontal section of the remov-` able 'sash stop. Fig. 7 is an enlarged horizontal section ofthe various parts constituting one vertical side member of a sash in separate order, this figure also showing a por* 1 tion of the glass plate for insertion in saidl side member. Fig. 8 is an enlarged vertical section of the upper portion of the frame and sash, the top of the frame being shown Hat. Fig. 9 is a detail fragmentary section of the joint of the side member and top of the frame.

ig.- 10 is an-enlarged vertical section of the lower portion of the frame and sash. Fig. 11

is a detail section of the joint between the sashes.

1 designates the window frame, 2 the upper sash and 3"'the lower sash. All of theseparts \are. constructed of sheet metal, the principle of the 5construction being the same In each case, lthat is to say, each part or meinber of the -rameer sash is formed of sheet metal 'bent to proper shape and'interloeked I edges bent in along the forward and rear' edges as shown at 12, and of a channel shaped lower plate 9 having its forward and rearedges bent out to enter and be seamed or locked within the bent-over portions of the top member, the lower part of this lower plate having, where it takes the upper sash, an inset or groove 10 formed by bending the same. At its ends the top plate extending over the side members is bent down as shown at 1 1 (Fig. 1) to extend outside of the side member.

Each side member 5 consists of an inner plate or strip ol` metal 52 bent to form the stops 13 betweenwhieh extend the two vertical grooves or guides for the sashes, and an outer sheet metal plate 14 having its ends seamed or interlocked as at 15 with the ends of theinner plate., and being bent to lform a rentrant angle 16 forming a brick-stop, then extending inwardly at each side and being bent or doubled von itself to form a web or partition 17 of double thickness extending inwardlyV to abut against the inside Wall of the inner member. This double artition 17 is olenchedby driving or punciing the Vsheet metal of'one part through the other and clenehing it as shown at 18.

The bottom member or sill 6 consists of a single plate of metal whose upper face is inthe side members are also bent in as shown at 21 to engage under such-cement filling.

The sidemembers are secured Vto the top member and the sill by bending and folding together the edges at the iront and rear lill lll.

thereof so as to form an interloc-lied seamof the frame at lthe front and rear is identical after seamedto the with that shown in Fig. 9, andthe inside wall of each side member is secured to the top of the sill member by seam-jointing to form the-angle joint, as shown at 55v in Fig. 1.'l The bottom plate of the top member extends, as shown at 56, over the top of the inside wall of each side member so as tojrest thereon, this extended portion serving as a means for supporting the hanger or bracket 61 for the supporting wheel 60 for the sash weight 58. This extended ortiom. is secured vto the side member by a Ebrace-57 which may be riveted to the two members which it connects, but said rivets form no essential part of the structure and they are not in position to interfere with the efficiency of the frame construction in cutting oif transmission of heat between the front and rear of the frame.` The construction of the. window frame in this manner is facilitated by the-formation of the top member of the. frame in two parts, the upper art 7 being left off until' the channel shapedll is connected to the side members, as above described, and the u per part 7vbeing thereower part 9of the top member. l

Each sash 2 or 3 comprises top, bottom and side members, each formed of sheet metal bent to form a hollow member, the ends of said members being interlocked'or seamedtogether to form rectangular frames. The to bar or member 'ofthe upper sash is forme with a top plate 23 bent down at each edge to engage and be Seamedwithin the bent-over ed e portions of the lower plate 24 formed of s eet metal'.bent in trough shape with a rentrant vrectangular stop, shoulder or rabbet 25 and witha groove 30, near the edge'of the plate, to receive the glass stop. The side members of the top sash are formed of sheet metal, `the outer plate 26 having its edges bent over and seamed within the. bent-over ends of the inner late 27, which 1s also .of sheet metal and 1s trough shaped and vformedwith a rabbet or shoulder 25. The side walls of this inner plate. are extended outwardly beyond the outer plate and then bent inwardly forming fins or flanges 29.01 double thickness, the space between said iianges serving to receive the sto for guiding the sash as hereinafter describe The inner face or shoulder -of the inner plate 27 has adjacent to the side wall a groove or depression 30 formed by bending the metal to engage and lock the glass-fastener or stop as hereinafter set forth. The bottom bai' 1s constructed of an u lper member 31 (Fig. 2) having arabbet or s oulderl 2'5 and a groove 30, similar to the corresponding arts of the to Vbar lor member above descri ed, the insi ewall ofthe said up er member being extended laterally and tlien u w'ardlylto engage and be seamed or-inter ocked with `the ower part 9 lower member34 formin a lateral flange 35 with an u wardly exten' ed rib or fiange 32.

receive and support the glass indicated at .37.'

To hold the glass in place, glass stops 3 8 are provided, each consistingvof s'heetmetal bent to form a trough of triangular sectionvbent and extended at one edge to form a fin 39 to engage or snap inthe groove 30 aforesaid in the-sash frame so that after the glass is put in place these glass stops can be snapped into lace over the saine and' hold the vglass firmly 1n position. Saidglass stops are mitered at their ends and interlocked as shown as 53 at such mitered portions so that they mutually su port one another at the joints.

twill be noted that in the above window frame the stopsl3 .which guide the .sashes are fixed parts ofthe frame. )In order to en-,l able insertion of the sashes'a removable extension strip 40 is provided at each side of each sash, said strip being of a doublechannel strip or H-strip of sheet metal, each edge of said web being bent on itselfto'one lside 4and then to the other side of said web to form double flanges, the flanges 41: on lone `side of the web being adapted to engage within the iiang'es 29 on the sash and the flanges` 42 on the other side of said web lprojecting from the channel between flanges 29 and being adapted to run withinthe stops 13.

on the side members of the frame 1. Said strip 40 is secured in position on the sash by means of a spring catch 43 `engaging in de- 'tent means 44 (Fig. 1) on the sash and released by manual operating means 45. As the lower end of the channel between flanges 29 on the sash is open, the stri can be pushed up fr 'om the lower end untl the catchv 45 passessaid detent means, whereu on the said strip is'retained between sai detent means and the'top plate of the sash, which plate extends over this channel to `form a fixed projecting means at the top ofythe .channel forholding thestripA from u Ward movement in the channel. The sai strip is thus a floating strip, being unattached to the sashbiit confined thereon between the sash body, the flanges'29, the. topplate of izo bthe sash, the catch 43 Vvand the wall of the side member of framel. The strip 40 therefore moves up and downwiththe sash, and

When it is desired to remove the Strg-gf to take out the sash, the'sash is raised, a

inserted up through Vthe open bottom of theil? .dow frame at that channel between flanges 29 and by pressing on nger piece 45, the catch 43 isdisengaged from detent means 44, and the strip 40 allowed to drop and is then taken out.

The construction of the lower sash is similar to that above described with the parts inverted and the bottom face of the lower bar inclined to iit the sill, and with. its top bar having a lateral extension 35 and a vertical rib or flange 36' formed by extending and interlocking its upper and lower members.

Thelateral extension 35 of the u per sash extends sufficiently far toward tie lower sash to project beneath the reversely cX- tending lateral iiange 35 on the top member of the lower sash, so that when the sashes are in closed position `these lateral extensions will abut and closethe space between the sashes. The seamed portions or flanges 32, 36 catho/respective lateral extensions extend reversely in a vertical .direction or parallel to the sash to abut and fit on one another, giving a tight joint.

The sash may be suspended by chains 47 passing through the top plate of the sash and engaging or extending under said top plate, in Fig. l, and the sash is locked by means 48. The partition 17 divides 'the space within the sidemembers into ways for the respective weights. Weights in their ways, openings are formed in the innen plates 52 of the side members, with a removable closure 49, held by a bend 50 in its lower end engaging the edge of the metal at the bottom o'f the opening and by' screws 51 at the upper end.

By ythe above described construction, the window frame and the sashframes are each formed as a unitary structure, all joints being seamed joints, and there being no rivets or brazed joints. It has been found that in case of fire a rivet joint is objectionable in that the rivet carries the heat more readily than the sheet metal structure, both by reason of the continuous conductive path afforded. by the rivet, and by reason of the imperfect vclosure ofjtherivet hole by the rivet, and this reduces the fire protection afforded by the window. Vith a seamed joint the overlapping and folded parts present a succession of alternate air spaces and metallic walls constituting barriers to the heat. The folding of theedges in an interlocked seam 'also forms a continuous reinforcement at the joint, vwhich braces and strengthens the winart, this reinforcement being of uniform thickness, greater' than ,the thickness of the sheet metal.'

What-lclaim is r 1. i-i window construction consisting of a frame having top, bottom and side members,4

each side member being of sheet metal bent and sean-red to form a tubular structure, and the top member being formed of sheet metal bent and seamedto form a t-ubular struc- To facilitate insertion Aof the .to form a ,artition extendin to the opp il g -to form sash ture and having its edges at each end, at the front and rear faces of the frame, bent and folded on the adjoining edgesvbf the side Y member to form a seam joint of uniform thickness greater than the thickness of the sheet metal.

2. A window construction consisting of a frame having top', bottom and side membfrs, each side member being of sheet metal bent and seamcd to form a. tubular construction and the top member being formed` of lower .and upper sheet metal parts seamed togethcr, the lower part of the top member having its edges at each end, at the 'front and -rcar faces' ofthe frame, bent and folded on yedges of the saidother two members to form a seam joint of uniform thickness greater than the thickness of the sheet metal.`

4. A window sash construction consisting of a plurality of members each member formed of two lates of sheet metal seamto form a tubular structure, and the edges of each member being bent andA folded on the edges of the adjacent members to form a continuous seam joint of uniform thickvfaces of the frame bent and folded on the jointed by bending and folding on each other ness, greater than the thickness of the sheet" metal.

5. 'A sidey member for window frames, consisting of sheet metal bent. to for'm a tubular structure, with a portion of thev metal bent inwardly and doubled on itself O-v site Wall o the structure, the doubledparts of said partition being clenched `on each other.. I

6. A window frame comprising side membersveach consisting of an inner plate bent 'stops and an outer plate sea'med and inter-locking at its edges with the inner plate, and having a portion bent toward and extending to the inner plate to form a partition, said partitibn having-its parts clenched on one another, in combination with a window frame sill consisting of sheet metal bent upwardly t'o form a bottom :sash stop and having its lower edges bent inwardly,`and cement filling` within said sill. 7. A Window Aframe construction comprising side members of sheet metal formed in tubular shape, and a top member con-` top plate, t e sides ofl the bottom plate of 13o the topfmember having its edges bent and folded on the edges of the Walls of the side members, ahd the top plate of the top member extending over the side members and top and. open at bottom, of a removable` strip extending between 4said flanges, a s rmg catch on said strip, and a fixed etent on the sash extending beneath said catch.' V

9. In a window construction, two sashes, the frame of each being formed, of sheet metal members bent in tubular shape and joined at theirends by seam-jointing, eaeli sash ,having the member at one end formed with a lateral sheet metal iiange bent' 4over and folded on itself to'form a rib, said ribs extending reversely in the two sashes .t0 lit on oneianother when the sashes are closed. if .10. A, window 'frame comprising side members, each consisting of inner and outer sheet metal lplates, formed in channel shape and seam jointed together to form a tubular strueture,. a sill member formed in channelshapeand seam `jointed at its ends to the j i side members, and atop member comprising a channel shaped lower platev seam jointed at its ends to the sidemembers, and a top plate seam jointed to the lower plate.

-11.' A window frame comprising side members, each consisting of inner and outer sheet metal platesformed in channel shape and seam jointed together to Jform a-tubular 'strueture, a sill member formed in channel shape and `seam jointed at its ends to the side of the sill member, and a top member comrising a channel sha ed lower plate seam jointed at its ends to t e side members, and

a top plate seam jointed tothe lower plate.'

28th 'day .of March 1907.

JOSEPH C. SPECHT.l

In presence'ofy. ARTHUR P. KNIGHT,

. FRANK VL. A. GRAHAM.

members, a filling oi cement in the ehanneli 

